Carbureter



P. S. TICE.

CARBURETER.

APPLICATION FILED JUNE 3.191s.

1,321,952., Patented Nov. 18, 1919.

lift

nal combustion engine.

UNITED STATES PERCIVAL'S. TICE, 0F DETROIT, MICHIGAN.

CARBURETER.

ll,32ll,952.

T 0 all whom it may concern:

Be it known that I, PERCIVAL S. Tron, a citizen of the United States, residing at Detroit, county of lVayne, State of Michigan, have invented a certain new and useful Improvement in Carbureters, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to carbureters and an object of my .-improvement is to provide an improved apparatus for vaporizing the hydrocarbon used as a fuel in internal combustion engines and mixing the same with the in-coming air.

I secure this object in the device described in the following specification and illustrated in the accompanying drawings in which,

F igure 1 is an elevation of a portion of an internal combustion engine having a plurality of cylinders, the p'arts'being broken away in part onthe line A-A Fig. 2 and shown in section to illustrate the internal construction.

Fig. 2 is a detail plan View showing mainly the exhaust manifold, the same be ing broken away in part on the line lB-B Fig. 1. a

a a indicates the cylinders of an interb b designates the branches of the pipe containing the passages leading to the engine intake and referred to in the claims as the engine intake passage. 0 is a contracted portion of the atmosphere inlet passage, 0, leading to the intake manifold. d is a liquid fuel discharge nozzle or terminal of a liquid fuel inlet pipe which is adapted to constitute a spraying nozzle for spraying or dispersing the hydro-carbon fuel discharged from it, said nozzle being provided for this purpose with a co-axially situated minor air inlet pipe, d. The spraynozzle which has both these interior and exterior elements,that is, the nozzle, 02,

and the co-axially situated minor air inlet pipe, 0!, is positioned with its discharge end 1 extending into the contracted portion, 0', of the main atmosphere inlet passage, 0. indicates the customary throttle valve in the air inlet passage. e e is the exhaust manifold, this is located directly above the intake manlfold, in the construction shown. is

Specification of Letters Patent.

Application filed June 3,

Patented Nov. 18, 1919.

1916. Serial No. 101,457.

The operation of the above described device is as follows:

lVhen the engine is operating air is drawn through the main atmosphere inlet, 0, and at the same time through the minor air inlet, (Z' and the gasolene is s rayed from the nozzle d intermixed with the air drawn in through the minor air inlet, 4 and the mixture is projected vertically upward and because of its inertia it continues in the direction of its discharge across the air passage 0 into the interior of the casting f and is caused to strike against the interior surface of said casting and the ribs f in a ver finely divided form or mist so that it is immediately vaporized and the particles do not come into, a spheroidal state. The vapor expands and flows into the manifold b b and is mixed with the in-coming air and gives up its latent heat, in whole or in part, to the air so that it is condensed into a mist which remains suspended in the air and is readily revaporated in the cylinders.

Because the amount of liquid discharged from the nozzle (1 is proportonal to the quantity of air passing, and because the liquid is projected into the chamber inclosed by the casting f and is immediately vaporized therein, the amount'of vapor issuing from the interior of said casting into the passing air will be proportional to such air so that the air will be heated to about the same degree under all conditions of working of the engine.

largely used to heat the spraying liquid entering the chamber in the casting 7 against the current of issuing vapor. What I claim, is:

11. Inan internal combustion engine, in combination with an intake passage having mainatmosphere inlet and through which 0 [an inward current is caused "by the suction ofthe engine; a chamber having its sole opening communicating with said intake passage; means for spraying hydro-carbon fuel into said chamber from a point outside The sensible heat of the issuing Vapor is' i sprayed thereinto, whereby the vaporization of the said hydro-carbon in said sprayed mixture is caused to occur substantially as rapidly as the said hydro-carbon is discharged into the chamber.

2. In an internal combustion engine, in combination with an intake passage having a main atmosphere inlet and through which an inward current is caused by the suction of the engine; a chamber having its sole opening communicating with said intake passage; a hydro-carbon full discharge nozzle,

positioned for discharging into said intake passage, and adapted to be so discharged by the suction of the engine; means for atomizing or finely sub-dividing the hydro-carbon fuel at its discharge from the nozzle, said means consisting of a minor air inlet duct positioned for discharge in said intake passage immediately contiguous to the hydrocarbon discharge of the nozzle, said nozzle and said minor air inlet passage being both positioned for discharge toward the sole opening of said chamber, at a point outside said chamber and at a distance back from said sole opening which is great relatively to the diameter of said opening, for projecting hydro-carbon mixturetinto said chamber, and means for heating the walls of said chamber above the vaporizing point of the hydro-carbon, whereby its vaporization occurs at its discharge into said chamber.

3. In an internal combustion engine, an intake passage, a chamber having its sole opening communicating with said intake passage, and means for heating the walls of said chamber to evaporate the hydro-carbon thrown into said chamber; a hydro-carbon fuel discharge'nozzle positioned with its discharge mouth at a distance therefrom which is great relatively to the diameter of said sole opening, said nozzle being directed toward said sole opening for discharge into said chamber counter to the path of outflow from the latter.

at. In an internal combustion engine, an

- intake manifold and an air intake passage thereto; an exhaust manifold; a chamber having one end opening into said intake manifold, its other end being closed and extending into said exhaust manifold and a spray nozzle for liquid hydro-carbon opening into the intake passage directed for discharge toward and into the open end of said chamber for producing a discharge of vapor from said chamber, said nozzle having its discharge mouth positioned at a distance away from said open end which is great relatively to the diameter of said open end of said chamber, whereby the spray of the nozzle is discharged counter to the vapor discharged from said chamber. t

5. In an internal combustion engine, in combination with a pa$age leading from an atmosphere inlet to the engine intake; a chamber opening into said passage and means for heating said chamber; a nozzle which constitutes a liquid fuel supply terminal, and means associated with said nozzle for discharging a spray of atomized fuel and intermixed air; the heating chamber having its sole mouth positioned in the line of said discharge from the spray nozzle at. a substantial distance from the discharge mouth of the latter, the discharge from said chamber into said main air passage being in the reverse direction of the discharge from the nozzle; whereby said two discharges encounter each other in said first mentioned passage.

In testimony whereof, I sign this specification.

PER-CIVAL S. TICE. 

